Improvement in bungs for beer-barrels



E. KRAFT.

,Bungs far Beer-Barrels.

Patented Dec. 23,1873.

UNITED STATES PATENT OFFICE.

EDY'VARD KRAFT, OF TYRONE, PENNSYLVANIA.

IMPROVEMENT IN BUNGS FOR BEER-BARRELS.

Specification forming part of Letters Patent No. 145,878, dated December23, 1873; application filed October 16, 1873.

To all whom it may concern:

Be it known that I, EDWARD KRAFT, of Tyrone, in the county of Blair andState of Pennsylvania, have invented certain new and useful Improvementsin Self-Ventilatin g Bungs; and I do hereby declare the following to bea full, clear, and exact description of the invent-ion such as willenable others skilled in the art to which it pertains to make and useit, reference being had to the accompanying drawings,

. 2 isa longitudinal section of the same. Fig.

3 is a view of the valve alone.

0 represents an ordinary wooden bung having an opening b, extending allthe way through it, a circular recess, 0, cut in its top, and a roundingvalve-seat, (I, formed at the junction of the recess and opening I).Extending through this hung is the rod or stem 0, which is long enoughto project some little distance downward into the barrel below thebottom of the bung, and which has the valve 9 formed upon its top.Placed upon the lower end of this stem is a leather disk, 1 which can beadjusted up and down, and made to regu late the distance which the valveshall move, so as to prevent it from being blown out of the bung by thepressure of gas in the barrel.

This is intended especially for barrels in which lager or otherfermenting liquids is stored away, so that when the pressure of gasbecomes too strong in the barrels it will raise the valve upward out ofits seat and escape up through the opening b around the sides of thestem. As soon as the pressure decreases the valve sinks back into itsseat from its own weight, and thus prevents any foul airs in the cellarfrom coming in contact with the beer.

Having thus described my invention, Iclaim The hung a, having the recess0, seat 01, and opening I), in combination with the stem 0, valve 9, anddisk a", substantially as shown and described.

\Vitnesses:

H. A. HIRL, .TNo. A. BOYER.

